一些 PC 用户报告说，当他们尝试在其 Windows 111 或 Windows 10 设备上使用Windows 传真(Windows Fax)和扫描小程序扫描文件或文档时，他们收到错误消息(Scan)未检测到扫描仪(No scanners were detected)。这篇文章提供了您可以尝试成功解决此问题的最合适的解决方案。
当你遇到这个问题。您将收到以下完整的错误消息；
Windows Fax and Scan
No scanners were detected. If a scanner is installed, make sure that it is powered on and connected to the computer, and then try again.
For information about adding or troubleshooting scanners, see Help and Support.
当计算机未能成功检测到扫描仪以发送或接收作业请求时，通常会出现该错误。此错误由多种原因引起，包括驱动程序安装不正确、扫描仪未正确连接或无线连接问题。
在 Windows 11/10 上未检测到扫描仪
如果您遇到此问题，您可以尝试以下我们推荐的解决方案（不分先后顺序），看看是否有助于解决问题。
- 检查扫描仪设置
- 运行硬件(Run Hardware)和设备(Devices) 疑难解答(Troubleshooter)
- 禁用和重新启用Windows 传真(Windows Fax)和扫描(Scan)
- 重新配置扫描仪
- 更新扫描仪驱动程序
让我们看一下关于列出的每个解决方案所涉及的过程的描述。
1]检查扫描仪设置
如果系统提示您 Windows 10传真(Fax)和扫描(Scan)未检测到扫描仪，则可能是您的扫描仪设置有问题。因此，您应该仔细检查扫描仪的设置，注意以下几点：
检查电缆和电源
确保(Make)扫描仪已通电，您需要检查您是否已将扫描仪插入电源，然后确保您已打开开关按钮以将扫描仪连接到电源。另外，请正确、牢固地插入线缆的两端，使其能够正常工作。此外，您可以尝试更换电源线，以消除电源线故障的可能性。
检查 USB 端口
有时导致此错误的原因可能在于USB端口问题。因此，当您遇到Windows Fax and Scan未检测到扫描仪(no scanners were detected)的问题时，您可以尝试断开扫描仪的连接，然后将其插入其他USB端口以查看其是否正常工作。此外，您可以尝试更换USB数据线，以消除(USB)USB数据线出现故障的可能性。
完成这些初步检查后，问题仍未解决，您可以尝试下一个解决方案。
阅读(Read)：如何安装 TWAIN 驱动程序(How to install TWAIN driver)。
2]运行硬件(Run Hardware)和设备(Devices) 疑难解答(Troubleshooter)
此解决方案要求您运行Windows 内置硬件和设备疑难解答程序来诊断和修复问题。
3]禁用(Disable)并重新启用Windows传真(Windows Fax)和扫描(Scan)
此解决方案要求您禁用通过Windows 功能小程序的(Windows Features)Windows 传真(Windows Fax)和扫描(Scan)，重新启动计算机，然后重新启用它。这个简单的操作可以解决问题。
请执行下列操作：
- 按Windows key + R调用“运行”对话框。
- 在“运行”对话框中，键入
appwiz.cpl并按Enter以打开“程序(Programs)和功能(Features)”小程序。 - 在打开的窗口左侧，单击打开或关闭 Windows 功能(Turn Windows features on or off )链接。
- 在Windows 功能( Windows Features )小程序中，向下滚动以查找打印和文档服务(Print and Document Services) 并将其展开。
- 取消选中 Windows 传真和扫描选项。(Windows Fax and Scan.)
- 单击确定(OK) 保存更改并退出。
- 重新启动计算机以使更改生效，然后通过再次选中该框重新启用Windows 传真(Windows Fax)和扫描。(Scan)
如果这不能解决问题，请继续执行下一个解决方案。
4]重新配置扫描仪
此错误消息主要表示扫描仪未连接到您的计算机或Windows未检测到有效的在线扫描仪来发送作业。您可以尝试重新配置扫描仪，看看是否能解决问题。
按照以下说明将扫描仪添加为 Windows 10 计算机上的新设备。
首先，请确保在此过程中扫描仪已打开电源，然后按以下步骤继续：
- 按Windows key + R调用“运行”对话框。
- 在“运行”对话框中，键入
control并按 Enter 以打开“控制面板” 。 - 从窗口的右上角，将查看方式(View by) 选项设置为 大图标(Large icons )或小图标( Small icons)。
- 选择设备和打印机(Devices and Printers)。
- 单击 设备和打印机(Devices and Printers)窗口 中的 添加设备。(Add a device)然后它将开始为您搜索打印机或扫描仪。您将看到框中列出的设备。
- 选择您要连接的打印机或扫描仪。
- 单击下一步(Next)继续。Windows将开始为您安装打印机或扫描仪，并等待该过程完成。
完成后，尝试连接到您的扫描仪并再次扫描以查看它是否有效。否则(Otherwise)，请尝试下一个解决方案。
5]更新扫描仪驱动程序
如果上述所有方法都无法解决问题，则可能是扫描仪驱动程序丢失或过时。在这种情况下，您应该尝试更新扫描仪驱动程序以解决此问题。
您可以通过设备管理器手动更新驱动程序(update your drivers manually via the Device Manager)，也可以在Windows 更新下(Windows Update)的可选更新(get the driver updates on the Optional Updates)部分获取驱动程序更新。您可以 从制造商的网站下载最新版本的驱动程序。(download the latest version of the driver)
请记住(Bear)，在少数情况下较新的驱动程序不起作用。在这种情况下，请下载旧版本的驱动程序并安装它。
希望这可以帮助！
相关帖子(Related post)：扫描仪无法在 Windows 上运行(Scanner is not working on Windows)。
No scanners were detected error on Windows 11/10 computer
Sоme PC users have reported that when they were trying to scan files or documents with the Windows Fax and Scan applet on their Windows 111 or Windows 10 device, they received the error message No scanners were detected. This post offers the most suitable solutions you can try to successfully resolve this issue.
When you encounter this issue. you’ll receive the following full error message;
Windows Fax and Scan
No scanners were detected. If a scanner is installed, make sure that it is powered on and connected to the computer, and then try again.
For information about adding or troubleshooting scanners, see Help and Support.
The error usually arises when the computer fails to successfully detect a scanner to send or receive a job request. This error is caused by various reasons including the incorrect installation of drivers, the scanner not connected correctly, or problems in wireless connection.
No scanners were detected on Windows 11/10
If you’re faced with this issue, you can try our recommended solutions below in no particular order and see if that helps to resolve the issue.
- Check Scanner setup
- Run Hardware and Devices Troubleshooter
- Disable and Re-enable Windows Fax and Scan
- Reconfigure the Scanner
- Update the Scanner Drivers
Let’s take a look at the description of the process involved concerning each of the listed solutions.
1] Check Scanner setup
If you are prompted that Windows 10 Fax and Scan not detecting scanner, there may be something wrong with the setup of your scanner. Therefore, you should carefully check your scanner’s setup, paying attention to the following:
Check the cables and power supply
Make sure that the scanner is powered on, you need to check whether you have plugged the scanner into the power source and then make sure you have turned on the switch button to connect the scanner to the power supply. In addition, plug in the cables correctly and firmly at both ends to enable them to work properly. Also, you can try changing the power cables to eliminate the possibility of faulty power cables.
Check the USB port
Sometimes the cause of this error may lie in the USB port problem. Therefore, when you encounter the issue that no scanners were detected by Windows Fax and Scan, you can try to disconnect the scanner and then plug it into a different USB port to see if it works. Also, you can try changing the USB cable to eliminate the possibility of a faulty USB cable.
After you have done these preliminary checks and the issue is still unresolved, you can try the next solution.
Read: How to install TWAIN driver.
2] Run Hardware and Devices Troubleshooter
This solution requires you to run the Windows built-in Hardware and Devices troubleshooter to diagnose and fix the issue.
3] Disable and Re-enable Windows Fax and Scan
This solution requires you to disable the Windows Fax and Scan via Windows Features applet, restart your computer and then re-enable it again. This simple operation can resolve the issue.
Do the following:
- Press Windows key + R to invoke the Run dialog.
- In the Run dialog box, type
appwiz.cpl and hit Enter to open the Programs and Features applet. - In the windows that opens, on the left side, click the Turn Windows features on or off link.
- In the Windows Features applet, scroll down to look for Print and Document Services and expand it.
- Uncheck the option of Windows Fax and Scan.
- Click OK to save changes and exit.
- Restart your computer to make the changes take effects and then re-enable Windows Fax and Scan by re-checking the box again.
If this doesn’t fix the issue, proceed with the next solution.
4] Reconfigure the Scanner
This error message primarily means that the scanner isn’t connected to your computer or Windows doesn’t detect a valid online scanner to send the job to. You can try reconfiguring the scanner and see if that resolves the issue.
Follow the below instructions to add the scanner as a new device on your Windows 10 computer.
To begin, make sure that the scanner is powered on during the process, then continue as follows:
- Press Windows key + R to invoke the Run dialog.
- In the Run dialog box, type
control and hit Enter to open Control Panel. - From the top right corner of the window, set the View by option to Large icons or Small icons.
- Select Devices and Printers.
- Click Add a device in the Devices and Printers window. And then it will start searching printers or scanners for you. You’ll see the devices listed in the box.
- Select the printer or scanner you intend to connect.
- Click Next to continue. Windows will start to install the printer or scanner for you, and wait for the process to finish.
Once done, try to connect to your scanner and scan again to see if it works. Otherwise, try the next solution.
5] Update the Scanner Drivers
If all the above methods fail to fix the issue, it’s likely the scanner driver is missing or outdated. In this case, you should try to update the scanner driver in order to fix this issue.
You can either update your drivers manually via the Device Manager, or you can get the driver updates on the Optional Updates section under Windows Update. You can download the latest version of the driver from the manufacturer’s website.
Bear in mind that there are few cases where a newer driver doesn’t work. In that case, download an older version of the driver and install it.
Hope this helps!
Related post: Scanner is not working on Windows.
